{"cve":"CVE-2011-2005","nvd":{"published":"2011-10-12T02:52:43.910","modified":"2026-06-16T23:30:35.373","status":"Analyzed","description":"afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka \"Ancillary Function Driver Elevation of Privilege Vulnerability.\"","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-2005"],"products":["microsoft:windows_server_2003","microsoft:windows_xp"],"source":"nvd","synced_at":"2026-10-19T19:59:31.623151214+00:00"},"epss":{"cve":"CVE-2011-2005","score":0.31761,"percentile":0.98299,"date":"2026-10-31"},"kev":{"cve":"CVE-2011-2005","date_added":"2022-03-28","due_date":"2022-04-18","vendor":"Microsoft","product":"Ancillary Function Driver (afd.sys)","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}